When the question asks to round to the next tenth, you just need one decimal place.
Example: 5.66 to the nearest tenth = 5.7
Example: 489.22 to the nearest tenth = 489.2 because the hundredth is less than 5
When the question asks to round to the next hundredth, you just need two decimal places.
Example: 47.238 to the nearest hundredth = 47.24
Example: 9.111 to the nearest hundredth = 9.11
When the question asks